| Fire department | City | County | Career firefighters | Website |
|---|---|---|---|---|
| Billings Fire Department | Billings | Yellowstone | 114 | Official site |
| Missoula Fire Department | Missoula | Missoula | 89 | Official site |
| Great Falls Fire Rescue | Great Falls | Cascade | 68 | Official site |
| Bozeman Fire Department | Bozeman | Gallatin | 49 | Official site |
| Helena Fire Department | Helena | Lewis and Clark | 42 | Official site |
| Missoula Rural Fire District | Missoula | Missoula | 42 | Official site |
| Butte-Silver Bow Fire Department | Butte | Silver Bow | 34 | — |
| Kalispell Fire Department | Kalispell | Flathead | 34 | Official site |
| Montana Air National Guard/Great Falls Airport | Great Falls | Cascade | 30 | — |
| Bridger Volunteer Fire Department | Bridger | Custer | 23 | — |
| Montana State Prison | Deer Lodge | Powell | 22 | — |
| Central Valley Fire District | Belgrade | Gallatin | 20 | Official site |
| Big Sky Fire Department | Big Sky | Gallatin | 17 | Official site |
| Havre Fire Department | Havre | Hill | 17 | Official site |
| Whitefish Fire Department | Whitefish | Flathead | 17 | — |
| Billings Logan International Airport, Aircraft Rescue Fire Fighting | Billings | Yellowstone | 15 | — |
| Livingston Fire Rescue | Livingston | Park | 15 | Official site |
| Wolf Point Volunteer Fire Department | Wolf Point | Roosevelt | 15 | — |
| Lockwood Rural Fire District #8 | Billings | Yellowstone | 14 | Official site |
| Miles City Fire-Rescue | Miles City | Custer | 14 | — |
| Anaconda Fire Department | Anaconda | Deer Lodge | 10 | — |
| Columbus Rural Fire District #3 | Columbus | Stillwater | 9 | Official site |
| Hebgen Basin Fire District | West Yellowstone | Gallatin | 9 | — |
| Bigfork Fire Department | Bigfork | Flathead | 8 | Official site |
| Lewistown Fire Department | Lewistown | Fergus | 8 | Official site |
| Lewistown Rural Fire Department | Lewistown | Fergus | 8 | Official site |
| Big Mountain Fire District | Whitefish | Flathead | 7 | — |
| Bert Mooney Airport Fire Department | Butte | Silver Bow | 6 | — |
| Frenchtown Rural Fire District | Missoula | Missoula | 5 | Official site |
| Columbia Falls Fire Department | Columbia Falls | Flathead | 4 | Official site |
| Glendive Fire Department | Glendive | Dawson | 4 | — |
| Marion Fire District | Marion | Flathead | 4 | Official site |
| Red Lodge Fire Department | Red Lodge | Carbon | 4 | Official site |
| Crow Agency Bja Volunteer Fire Department | Crow Agency | Big Horn | 3 | — |
| Yellowstone Airport ARFF | West Yellowstone | Gallatin | 3 | Official site |
| Columbus Volunteer Fire Department | Columbus | Stillwater | 2 | Official site |
| Lincoln County Rural Fire District #1 | Libby | Lincoln | 2 | — |
| Polson Fire Department | Polson | Lake | 2 | — |
| Seeley Lake Rural Fire District | Seeley Lake | Missoula | 2 | Official site |
| Smith Valley Fire District | Kalispell | Flathead | 2 | Official site |
| West Valley Fire Rescue | Helena | Lewis and Clark | 2 | Official site |
| Beaverhead Fire District #2 | Dillon | Beaverhead | 1 | — |
| Dillon Volunteer Fire Department | Dillon | Beaverhead | 1 | — |
| Ferndale Volunteer Fire Department | Bigfork | Flathead | 1 | — |
| Hamilton Fire Department | Hamilton | Ravalli | 1 | Official site |
| Polson Rural Fire District | Polson | Lake | 1 | — |
| Rosebud County Fire Department | Forsyth | Rosebud | 1 | — |
| Shepherd Volunteer Fire Department | Shepherd | Yellowstone | 1 | — |
| Superior Rural Fire District | Superior | Mineral | 1 | Official site |
| Superior Volunteer Fire Department | Superior | Mineral | 1 | Official site |
| Tri-Lakes Volunteer Fire Department | East Helena | Lewis and Clark | 1 | Official site |
Largest first by career firefighters, as each employer reports it to its federal registry.
Source: U.S. Fire Administration (FEMA), National Fire Department Registry. Data captured September 30, 2026.